Woman Calls Cops On Cops?

What in tarnation was going on in this Sacramento, California apartment? See if you can figure it out. From The Sacramento Bee:

Police attempted to serve a warrant on Fairfield Avenue. Officers said that they heard a woman talking inside the apartment, and they knocked, identified themselves as police officers and asked to speak to the woman. A man inside replied that she wasn’t there, but they could come back later. Officers again heard a woman inside and re-identified themselves, adding that if the occupants did not open the door, it would be forced open. After the residents again refused to open the door, it was forced open, and the woman was found talking to police and reporting that someone was trying to break into her apartment.